Salivary chromosome maps with a key to the banding of the chromosomes of Drosophila melanogaster
Salivary chromosome maps with a key to the banding of the chromosomes of Drosophila melanogaster
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DOI：
10.1093/oxfordjournals.jhered.a104022
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发表时间：
1935-02-01
影响因子：
3.1
通讯作者：
Bridges, CB
中科院分区：
文献类型：
--
作者：
Bridges, CB
讨论了对唾液染色体精细结构进行观察的技术。呈现了一组有趣的图谱，并指出了一些“标志性特征”。唾液染色体的总长度约为生殖细胞染色体的150倍。拉伸的染色体比未拉伸的更利于观察。讨论了基因的大致位置，并给出了约2650个带或基因座的估计值。染色体中的重复（包括正向和反向重复）被认为对物种进化具有重要影响。
The technique of making observations on the detailed structure of salivary chromosomes is discussed. An interesting set of maps is presented and a number of "landmarks" are pointed out. The total length of the salivary chromosomes is ca. 150 times that of the gonial chromosomes. Stretched chromosomes are better for observation than unstretched. The approximate location of genes is discussed and an estimate of 2,650 bands or loci is given. Duplications or repeats in chromosomes, both direct and reversed, are considered to have an important bearing on the evolution of species.